WASTE OIL RE-REFINING
Waste mineral oils are a strategic and important raw material in terms of both commercial and carbon footprint.
For a better future, the world has turned to sustainable energy and low carbon footprint. This has increased the importance of recycling.
Base oils obtained from waste oils with correct technology techniques are extremely environmentally friendly and climate-friendly in terms of low carbon footprint.Waste mineral oils base oil with advanced refining techniques has a 70% lower carbon footprint than base oils produced through crude oil refining
The desire to meet climate goals must be balanced with commercial objectives and the need for secure supply.
Support OIL is a sustainable business partner with its knowledge, experience and innovative solutions that reduce carbon footprint.
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PROCESS FOR RECYLING USED OIL
Used oil recycling process is done in 3 stages:
1. Dehydration (STEP 1)
Process of used oil recycling begins with dehydration. From storage tank, used oil is transferred to reactor for dehydration where it is heated up to certain temperature to remove water & fuel (Which is also known as light ends). The process is done under 600-700 mmHg vacuum to decrease surface tension. As temperature raises, first water & then fuel evaporates and passes through condenser, so they come to liquid form again and are collected in receivers.
3. Bleaching
Base oil received after distillation process is known as ‘Raw Base Oil’ because it still contains impurities (mostly aromatics & ash contains), so it is taken further to bleaching process where it gets reacted with bleaching clay (clay-treatment process) or NMP solvent (solvent-extraction process). After bleaching process, we get final Recycled Base Oil.
2. Distillation (STEP 2)
After dehydration process, used oil is shifted to evaporator for distillation where it is heated to 320 °C - 350 °C under >759.5 mmHg vacuum, with raise in temperature, base starts evaporating from used oil and passes through condensers, so they come to liquid form again and is collected in receivers. After all base oil evaporates, Asphalt (which is also known as Bottom, Residue, Bitumen etc.) remains at bottom of evaporator which is also collected in receiver.
